Authors

Document Type

Journal Article

Publisher

Copernicus Publications

School

School of Natural Sciences / Centre for Marine Ecosystems Researc

RAS ID

21313

Comments

Originally published as : Cisneros, Mercè (2016). "Sea surface temperature variability in the central-western Mediterranean Sea during the last 2700 years: a multi-proxy and multi-record approach". Climate of the past (1814-9324), 12 (4), p. 849-869. Available here

Abstract

This study presents the reconstructed evolution of sea surface conditions in the central-western Mediterranean Sea during the late Holocene (2700 years) from a set of multi-proxy records as measured on five short sediment cores from two sites north of Minorca (cores MINMC06 and HER-MC-MR3). Sea surface temperatures (SSTs) from alkenones and Globigerina bulloides Mgĝ€/ĝ€Ca ratios are combined with Î 18O measurements in order to reconstruct changes in the regional evaporation-precipitation (E-P) balance. We also revisit the G. bulloides Mgĝ€/ĝ€Ca-SST calibration and re-adjusted it based on a set of core-top measurements from the western Mediterranean Sea. Modern regional oceanographic data indicate that Globigerina bulloides Mgĝ€/ĝ€Ca is mainly controlled by seasonal spring SST conditions, related to the April-May primary productivity bloom in the region. In contrast, the alkenone-SST signal represents an integration of the annual signal.